US20020075689A1 - Lifting apparatus, particularly for lighting fittings and not, shot studios - Google Patents

Lifting apparatus, particularly for lighting fittings and not, shot studios Download PDF

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Publication number
US20020075689A1
US20020075689A1 US09/909,270 US90927001A US2002075689A1 US 20020075689 A1 US20020075689 A1 US 20020075689A1 US 90927001 A US90927001 A US 90927001A US 2002075689 A1 US2002075689 A1 US 2002075689A1
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United States
Prior art keywords
structures
pantograph
coupling
parallelogram
teeth
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US09/909,270
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US6623146B2 (en
Inventor
Mario De Sisti
Fabio De Sisti
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De Sisti Lighting SpA
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Individual
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Assigned to DE SISTI LIGHTING S.P.A. reassignment DE SISTI LIGHTING S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE SISTI, FABIO, DE SISTI, MARIO
Publication of US20020075689A1 publication Critical patent/US20020075689A1/en
Assigned to DE SISTI LIGHTING S.P.A. (AN ITALIAN CORPORATION) reassignment DE SISTI LIGHTING S.P.A. (AN ITALIAN CORPORATION) MERGER (SEE DOCUMENT FOR DETAILS). Assignors: DE SISTI S.R.L. ( AN ITALIAN CORPORATION)
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/24—Lazy-tongs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/06—Arms
    • F16M2200/061—Scissors arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/06—Arms
    • F16M2200/065—Arms with a special structure, e.g. reinforced or adapted for space reduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the present invention relates to an improvement in a lifting apparatus, particularly for lighting fittings and not, for shooting studios.
  • the invention concerns an apparatus of the above kind that allows avoiding, or at least dramatically reducing, effects of possible stresses that could act on the apparatus and that could destabilising the same apparatus.
  • Lifting apparatuses are generally provided with a manually or motor controlled horizontal movement and with a manually or motor controlled vertical movement.
  • Main object of the present invention is that of providing an apparatus allowing to realise an apparatus of the above kind having optimum stability features during its displacement.
  • an improved lifting apparatus particularly for lighting fittings and not, for shooting studios, comprising a pair of pantograph structures, provided side by side, spaced and substantially parallel each other, provided above with coupling suspension means and at the bottom with means for coupling the fitting to be lifted, motorization means, to operate both said parallelogram structures, provided above, between said two parallelogram structures and coupling means to connect said motorization means with each one of said parallelogram structures, said apparatus being characterised in that the upper and lower end arms of each one of said pantograph structures are provided with teeth meshing with corresponding teeth provided on the corresponding arm of the same pantograph structure.
  • each pantograph structure is rotatably pivoted on plate means.
  • teeth of said end arms are section bars.
  • FIG. 1 is a perspective view of an apparatus according to the invention.
  • FIG. 2 is a front view of the apparatus of FIG. 1.
  • an apparatus 1 comprising two pantograph structures 2 and 3 , substantially parallel and space each other, each one comprising a plurality of arms 4 linked in the articulation points 5 , and coupled each other by transverse bars 6 .
  • ratiomotor 10 is placed between the two pantograph structures, in such a way to have the lowest possible height dimensions, so that when the apparatus 1 according to the invention is closed, the fitting suspended to the same will be in the highest position, thus eliminating the risk that it is shot during the shootings.
  • the innovative solution suggested according to the present invention provides for each one of the pantographs 2 and 3 , in correspondence of the ends 11 of the upper and lower arms 4 of each one of them, a toothing 12 , meshing with the corresponding toothing provided on the arm 4 of the pantograph.
  • Said two ends 11 are pivoted in the point indicated by the reference number 13 , on a plate 14 .
  • Said mechanism comprised of toothed ends and of a pivoting plate, is provided both above and at the bottom, on both the pantographs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to an improved lifting apparatus (1), particularly for lighting fittings and not, for shooting studios, comprising a pair of pantograph structures (2, 3), provided side by side, spaced and substantially parallel each other, provided above with coupling suspension means (7) and at the bottom with means (8) for coupling the fitting to be lifted, motorization means (10), to operate both said parallelogram structures, provided above, between said two parallelogram structures (2, 3), and coupling means to connect said motorization means with each one of said parallelogram structures, said apparatus (1) being characterized in that the upper and lower end arms (4) of each one of said pantograph structures are provided with teeth (12) meshing with corresponding teeth (12) provided on the corresponding arm of the same pantograph structure (2, 3).

Description

  • The present invention relates to an improvement in a lifting apparatus, particularly for lighting fittings and not, for shooting studios. [0001]
  • More particularly, the invention concerns an apparatus of the above kind that allows avoiding, or at least dramatically reducing, effects of possible stresses that could act on the apparatus and that could destabilising the same apparatus. [0002]
  • As it is known, in the cinema and/or television shooting field, and particularly the indoor shootings, many fittings are suspended from the ceiling by lifting apparatuses. Mainly, but not exclusively, they are lighting fittings. [0003]
  • Lifting apparatuses are generally provided with a manually or motor controlled horizontal movement and with a manually or motor controlled vertical movement. [0004]
  • One of the main problems that must be faced up when using this kind of apparatuses is due to the fact that during the motion of the lifting apparatus, supporting a very heavy fitting, the same lifting apparatus must be as more stable as possible. [0005]
  • In fact, every slight motion can, in view of the long arms, induce remarkable stresses on the same apparatus, with the obvious consequences. [0006]
  • Apparatuses presently employed are not able to completely satisfy this kind of needing. [0007]
  • In the most recent apparatuses, it is provided a double pantograph structure, wherein it is necessary to be able that, beside the needing of obtaining a determined stability, it is guaranteed that every displacement caused on an arm of a parallelogram corresponds to an analogous displacement on the arm of the other parallelogram. [0008]
  • To obtain this kind of result, following any kind of movement of the apparatus, i.e. both in extension and retraction of the apparatus, at present a solution is used providing, both above and at the bottom on the double parallelogram structure, a pair of horizontal slots, and a vertical slot, allowing to transfer every movement acts on an arm of a parallelogram, on the corresponding arm of the other parallelogram. [0009]
  • However, this kind of solution does not allow to completely solving the problems connected with the transmission of the motion and with the stabilisation of the structure. [0010]
  • In view of the above, the Applicant has realised a solution able to solve all the above mentioned problems. [0011]
  • Main object of the present invention is that of providing an apparatus allowing to realise an apparatus of the above kind having optimum stability features during its displacement. [0012]
  • It is therefore specific object of the present invention an improved lifting apparatus, particularly for lighting fittings and not, for shooting studios, comprising a pair of pantograph structures, provided side by side, spaced and substantially parallel each other, provided above with coupling suspension means and at the bottom with means for coupling the fitting to be lifted, motorization means, to operate both said parallelogram structures, provided above, between said two parallelogram structures and coupling means to connect said motorization means with each one of said parallelogram structures, said apparatus being characterised in that the upper and lower end arms of each one of said pantograph structures are provided with teeth meshing with corresponding teeth provided on the corresponding arm of the same pantograph structure. [0013]
  • Preferably, according to the invention, said end arms of each pantograph structure are rotatably pivoted on plate means. [0014]
  • Still according to the inventions said teeth of said end arms are section bars.[0015]
  • The present invention will be now described, for illustrative but not limitative purposes, according to its preferred embodiments, with particular reference to the figures of the enclosed drawings, wherein: [0016]
  • FIG. 1 is a perspective view of an apparatus according to the invention; and [0017]
  • FIG. 2 is a front view of the apparatus of FIG. 1.[0018]
  • Referring to both the figures of the enclosed drawings, it is shown an [0019] apparatus 1 according to the invention comprising two pantograph structures 2 and 3, substantially parallel and space each other, each one comprising a plurality of arms 4 linked in the articulation points 5, and coupled each other by transverse bars 6.
  • Above said [0020] parallelogram structures 2 and 3 means 7 are provided (FIG. 2), not shown in greater detail since they are not part of the present invention.
  • Said [0021] apparatus 1 further provides at the bottom an coupling 8 for the fitting to be suspended (that is generically indicated by the reference number 9), and provided with a horizontal movement, by not shown means, that can be an automatic or manual movement, and with a vertical movement (also these solutions are not described in detail sine they are not part of the scope of the present invention).
  • As it can be noted from the figures, [0022] ratiomotor 10 is placed between the two pantograph structures, in such a way to have the lowest possible height dimensions, so that when the apparatus 1 according to the invention is closed, the fitting suspended to the same will be in the highest position, thus eliminating the risk that it is shot during the shootings.
  • The innovative solution suggested according to the present invention provides for each one of the [0023] pantographs 2 and 3, in correspondence of the ends 11 of the upper and lower arms 4 of each one of them, a toothing 12, meshing with the corresponding toothing provided on the arm 4 of the pantograph.
  • Said two [0024] ends 11 are pivoted in the point indicated by the reference number 13, on a plate 14.
  • Said mechanism, comprised of toothed ends and of a pivoting plate, is provided both above and at the bottom, on both the pantographs. [0025]
  • In this way, every movement induced in one of the two [0026] pantographs 2, 3 is automatically transmitted also to the other arm of the pantograph, without any problem of instability of the structure.
  • Teeth of the [0027] toothings 12 will obviously be designed according to the specific needing, both for their dimensions and their loading capability.
  • The present invention has been described for illustrative but not limitative purposes, according to its preferred embodiments, but it is to be understood that modifications and/or changes can be introduced by those skilled in the art without departing from the relevant scope as defined in the enclosed claims. [0028]

Claims (4)

1. Improved lifting apparatus, particularly for lighting fittings and not, for shooting studios, comprising a pair of pantograph structures, provided side by side, spaced and substantially parallel each other, provided above with coupling suspension means and at the bottom with means for coupling the fitting to be lifted, motorization means, to operate both said parallelogram structures, provided above, between said two parallelogram structures and coupling means to connect sad motorization means with each one of said parallelogram structures, said apparatus being characterised in that the upper and lower end arms of each one of said pantograph structures are provided with teeth meshing with corresponding teeth provided on the corresponding arm of the same pantograph structure.
2. Apparatus according to claim 1, characterised in that said end arms of each pantograph structure are rotatably pivoted on plate means.
3. Apparatus according to claim 1, characterised in that said teeth of said end arms are section bars.
4. Apparatus according to each one of the preceding claims, substantially as illustrated and described.
US09/909,270 2000-07-19 2001-07-19 Lifting apparatus particularly for lighting fittings Expired - Fee Related US6623146B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000RM000398A IT1315967B1 (en) 2000-07-19 2000-07-19 IMPROVEMENT IN A LIFTING EQUIPMENT, IN PARTICULAR FOR LIGHTING EQUIPMENT AND NOT, FOR SHOOTING STUDIES.
ITRM2000A000398 2000-07-19

Publications (2)

Publication Number Publication Date
US20020075689A1 true US20020075689A1 (en) 2002-06-20
US6623146B2 US6623146B2 (en) 2003-09-23

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US (1) US6623146B2 (en)
EP (1) EP1179707A3 (en)
IT (1) IT1315967B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220330519A1 (en) * 2021-04-20 2022-10-20 John Chitkowski Elevatable pet bed platform assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20219100U1 (en) * 2002-12-09 2003-04-17 Schill Stahl Und Metallbau Gmb Expanding scissors platform for a projector has base upper platform and expandable section
CA2644726A1 (en) * 2006-03-09 2007-09-13 Mark A. Fox Radiation protection system
JP5312955B2 (en) * 2006-03-10 2013-10-09 マーク・エイ・フォックス Radiation protection system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US746210A (en) * 1903-02-20 1903-12-08 Henry S Waite Telephone-bracket.
FR657637A (en) * 1928-07-18 1929-05-24 Lifting jack for automobiles or other applications
FR974048A (en) * 1941-11-25 1951-02-16 Carriage stand for cinematographic cameras
CH462411A (en) * 1967-12-29 1968-09-15 Wiederkehr Hans Jack
US5029814A (en) * 1987-02-09 1991-07-09 Hein-Werner Corporation Scissor jack stand
DE68926444D1 (en) * 1989-02-03 1996-06-13 Langlois & Peter Sa Jack with double lifting scissors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220330519A1 (en) * 2021-04-20 2022-10-20 John Chitkowski Elevatable pet bed platform assembly

Also Published As

Publication number Publication date
EP1179707A3 (en) 2004-05-26
ITRM20000398A0 (en) 2000-07-19
EP1179707A2 (en) 2002-02-13
IT1315967B1 (en) 2003-03-26
US6623146B2 (en) 2003-09-23
ITRM20000398A1 (en) 2002-01-19

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AS Assignment

Owner name: DE SISTI LIGHTING S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DE SISTI, MARIO;DE SISTI, FABIO;REEL/FRAME:012573/0030

Effective date: 20010713

AS Assignment

Owner name: DE SISTI LIGHTING S.P.A. (AN ITALIAN CORPORATION),

Free format text: MERGER;ASSIGNOR:DE SISTI S.R.L. ( AN ITALIAN CORPORATION);REEL/FRAME:014051/0674

Effective date: 20021128

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Year of fee payment: 4

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LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20110923